50 Pesos

The Confederación Argentina was the rival federal government seated at Paraná, Entre Ríos, locked in direct political opposition to the State of Buenos Aires throughout the late 1850s. These notes circulated in the interior provinces during that split — Buenos Aires had seceded in 1852 following the fall of Rosas, and the two entities ran parallel administrations, parallel currencies, and parallel everything else until reunification forced under Bartolomé Mitre in 1861.

Printing in Paraná rather than a European bureau reflects both the urgency and the limited resources of a government that never fully controlled its own financial infrastructure. Notes of this series are scarce in any condition; the Confederation's short lifespan meant limited production runs and poor archival survival.